DS18S20Z

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DS18S20Z

SENSOR DIGITAL -55C-125C 8SOIC

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Spezifikationen

Part Status Active
Sensor Type Digital, Local
Sensing Temperature - Local -55°C ~ 125°C
Output Type 1-Wire®
Voltage - Supply 3V ~ 5.5V
Resolution 9 b
Features Output Switch, Programmable Limit, Standby Mode
Accuracy - Highest (Lowest) ±0.5°C (±2°C)
Test Condition -10°C ~ 85°C (-55°C ~ 125°C)
Operating Temperature -55°C ~ 125°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number DS18S20

Übersicht

Description

Introduction to DS18S20Z (DS18S20 family)
- A low-cost, 1-Wire digital temperature sensor from Maxim (now Analog Devices). The “Z” variant typically denotes a RoHS-compliant packaging version.
- Core spec: -55°C to +125°C operating range; 9-bit resolution (0.5°C steps); accuracy around ±0.5°C.
- Interface: single data line (with ground) plus optional power. Supports parasite power or normal 3–5.5V supply. Requires a pull-up resistor on the 1-Wire data line.
- Addressing: each device has a unique 64-bit ROM code; family code for DS18S20 is 0x10.
- How it’s read: master issues Convert T, then Read Scratchpad to obtain temperature data (temperature LSB/MSB; LSB represents 0.5°C).
- Pros: simple wiring, small package, inexpensive for basic temperature sensing.
- Cons: lower resolution than newer DS18B20 variants; slower updates depending on conversion time.
Typical uses: home automation, data loggers, HVAC, environmental monitoring. Always consult the latest datasheet for exact packaging and electrical details.

Features

DS18S20Z features (concise):
- 1-Wire digital thermometer with a unique 64‑bit ROM ID
- Temperature range: −55°C to +125°C
- Resolution: 9‑bit (0.5°C steps)
- Power options: external VDD (3–5.5V) or parasite power from the data line
- 3‑pin TO‑92 package (GND, VDD, DQ) designated DS18S20Z
- Scratchpad memory with temperature data, alarm TH/TL, and CRC
- Alarm/Search capability on TH/TL thresholds
- Reads temperature via 1‑Wire protocol; can have multiple devices on one bus
- Typical conversion time ~93.75 ms (9‑bit)
- Low-cost, widely used for simple temp sensing and HVAC/home-automation apps

Package

TO-92 (three-pin) plastic package; RoHS-compliant lead-free variant.

Pinout

Pin count: 3 pins (TO-92 package).
Function: 1-Wire digital thermometer sensor. Pinout typically: Pin 1 = GND, Pin 2 = DQ (data), Pin 3 = VDD. Communicates temperature over the 1-Wire bus; normally 9‑bit resolution (~0.5°C steps) and can be powered from VDD or via parasite power on the data line.

Manufacturer

- Manufacturer: Dallas Semiconductor (now part of Maxim Integrated; Maxim is a subsidiary of Analog Devices).
- Kind of company: A semiconductor company that designs and manufactures integrated circuits and related components (devices like digital temperature sensors).

Application

DS18S20Z is a 1-Wire digital thermometer (9-bit, about ±0.5°C). Common applications include:
- Home automation, smart thermostats, HVAC temperature sensing
- Data logging and environmental monitoring
- Cold-chain and refrigerated-storage monitoring
- Appliances and consumer electronics temperature sensing
- Industrial process monitoring and over-temp protection
- Automotive cabin/engine temperature sensing (low-cost option)
- DIY projects with microcontrollers (Arduino, Raspberry Pi) over 1-Wire network

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